assembly mode selector is in the bypass position (fig.
7-18) and the system is cycled, the rounds are guided
around the element sprocket and into an ammunition
chute, which returns them to the entrance end of the
When you first connect or remove the interface unit
to or from the aircraft adapter, the interface unit
assembly must be in the bypass position. When the
interface unit assembly mode selector is in the load
position (fig. 7-19) and the system is cycled, the rounds
are removed from the elements by a sprocket and
guided into the elements in the aircraft adapter.
The rounds are carried from the aircraft adapter to
the aircraft drum. The elements entering the aircraft
adapter from the aircraft system contain spent cases or
cleared rounds. These rounds are removed from the
aircraft elements and are guided by a sprocket into the
elements of the conveyor system for transfer to the
For further information concerning the LALS
MHU series refer to NAVAIR 19-1-125.
REVIEW NUMBER 1 ANSWERS
The Linkless Ammunition Loading System
(LALS) consists of a loader ammunition
transporter, a drum loader assembly, a
conveyor system, and a drum unload
The LALS can hold 1,400 rounds of
electrically primed, M50/PGU ammunition.
The MHU-191/M transporter is used with the
The loader ammunition transporter is used to
move rounds/cases through the exit and
entrance ends during operation.
The purpose of the drum loader assembly is to
The conveyor system is used to transport
rounds from the transporter to the aircraft
system. It simultaneously transports spent
cases and cleared rounds from the aircraft
system to the transporter.
Two gear-driven sprocket assemblies in the
exit unit assembly transfer rounds from the
transporter to the elements.
The drive power is transmitted from the
interface unit to the drum drive assembly by
the flexible drive shaft.
Figure 7-18.Ammunition flow in bypass mode.